I tend to favor Logitech meeces. They're indestructible. My M310 is nearly three years old and it's as smooth and responsive as the day it came out of the box. It's compact, so it goes into my laptop case when I'm out of the office so I can use it with my MBP, too.

The "problem" is not critical at the moment. This Razer is an excellent mouse even if it is a bit overkill for me. I simply like the quick responsiveness and accuracy of it. Maybe I can save up for a Magic Trackpad in the next few months. My only mobile device is my iPhone, so a portable mouse is not a necessity.

Have you tried compressed air? I even went so far as to use my compressor from the shed and blow out the scroll wheel area, holding it upside down, whilst "scrolling".Sometimes it's just a bit of dirt.

"If it turns out that President Barack Obama can make a deal with the most intransigent, hard-line, unreasonable, totalitarian mullahs in the world but not with Republicans? Maybe he’s not the problem."

Don't use that. Some plastics may not like it, and with the way the scroll wheel works that will be of no advantage. It probably has little notches that read through a sensor. Those notches are way down inside, like spokes on a bicycle wheel. Might be dirt on the sensor so try the compressed air.

The screws for taking it apart are probably underneath some of the feet on the bottom. Search Google for how to take apart your mouse.

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